Jimmyproof lock



S. SEGAL JIMMYPROOF Loox May 16, 1939.

Filed Aug. 13, 1956 2 Sheets-Sheet l fts/ iVENTOR' S. SEGAL JIMMYPROOF LOCK May 16, 1939.

2 Sheets-Sheet .2

Filed Aug: 15, 1936 ArTo RN EY Patented May 16, v1939 nMMYPRooF Locri Samuel Segal,

Brooklyn, N. Y.

VApplication August 13, 1936, YSerial N0. 9589S 3 Claims.

'The "subject n'iatterof the present `invention is 'a door 'lock fof the fjir'nrny proof type having a vertically movable 'bolt `comprising spaced studs adapted 'to 'removably 'interlock 'with vapertured lugs of 1a stationary keeper fastened to the jamb for frame of gythe ldoor.

The invention has vfor its primary object to provide in 'a jimmy -p'roo'f llo'ck means for automatically shifting the vertically guided bolt from an Vinoperative to an operative position to interlock 'with the iafp'ertured lugs 'of the fixed keeper when the 'door fi'suswung to "a 'closed position vrelatiVe to the "door A''l'l'allle The 'inv'e'r'i'tion Phas as -a further 'object to provide in a jim'rrly -pro'o'f lock a toggle arrangement pivotailly finl-intel on Lthe 'vertically Shiftable bolt and having means l*adapted to cooperate with 'an "apertur'ed lug "of Ythe 'fixed keeper 'for moving pivt'ed latch ot Gf the pa'th off Stop means to `peli'i', Vertical displacement of the bolt in re- 'spe'c't to th'e cafshig, and 'automatic umeans for 'bodily ``Shiftig the fbolli, latch and toggle pur- 'suan't to release lof lthe latch frc'irn the fsto'p inea'ns `'t0 De'rnit the l'slced Studs of -the ylool't to interlock With cooperating -ap'ertuid lugs of the fixed keeper.

The invention also consistsin certain newand origin'al features o`f construction and l"c'oifnbinatoh "of parte hereinafter etfrth V21.11`c'i5'as to 'other obects, features, adv-ant`h ,the inode of opera'- ti'oh, and inah'ler f rg hiaat-ion, these, inter alia, may be better ii'ldestood by referring to the folloWi'n-'g 'description considered -in connection with the accompanying dravfng's'fi'inilng a part thereof in which:

Fig. lis a horizohtal sectional view o'f the lock according to the invention, 'Shown afti'fached to -the inile'r surface of a door which i'sjsho'W-n moving in tli'e vlirec'li'n f the Varii and about to clo'se.

Fig. 2 -is an inside elevational vi'eW taken on the line 2-'2 of 1, particularlyillstl'ating the bolt 'Of the lock :in inoperative position with the p i'v'oted latch o'f the Vbolt aga-inst a stop 'of the lock casi-'ng and the 'overhahging portion of the 'expanded 'to'g'gl'e just about to strike an apertur'e'd lug of the liied keeper. l l

Fig. 3 is inside 'elevational view `of the lock Showing the posit-ion of the 'toggle after having struck an 'apertured lug of the keeper to remove o'r release the pivoted latch 'from the stop means.

Fig. 4 i's a view similar to Fig?. 2 however showing the bolt moved to a position Where its studs interlock with the keeper when the toggle is 55 again expanded, and Where the pivte'cl latch is against the stop ineans to-pr'event'aciderital 'retraction of the bolt. l

Fig. 5 is a sectional View onthe line '"5-5 oi 2. Y Fig. '6 is `a 'fragmentary front elevational vievv "of nthe Alool; and `keeper shown interlocked, parkncuiarily illustrating the position of the inner 'toggle 'in dash and dot lines.

Fig. '7 is :a View similar to Fig. 2 but With the y pivoted toggle removed 'from the bolt. Y.

Fig. 8 is a sectional rView on the line 8-8 of Fig. 2.

Fig. 9 is va 'Sectional view on the line 9-9 of Fig. 2 and Figi() is a perspective veW of the latch particularly showing the toggle mounted thereon.

As illustrated, the lock is generally denoted f. This `lock comprises a rcasing rIl having spaced *sockets or guards i2, I3 Aand i4 adapted 'to removably receive o'verhanging "studs la and l5 of la vertically vshiftalole bolt i5 Vwhich Vincludes spaced Iand vertically disposed ribs il and I8 slidably guided between vertically arranged and 'spaced rectilinear 'tracks or rib's 'I9 and 2li pro- -J'ecting from Wall 2l of the casing Il.

v]if1"1`e"gi'tl with bolt 'i6v is lip 22 which is pli()- rvid'ec'tlvsfith Athe inclined face 23 and Vseverally kcooperating iv'it'l'i the latter are the Winged and similar arms l and integral with and oiset from `aninihfis 25 'ar'icholrecl to bushing 2l to ivhich the ihfaiiipulatable' knob '281s secured. Bushing 2l is rotatably sustained in bearing 29 project- `ing from W'all 2l of thev lock casing. Ii knob 23 is rotated, say in the direction indicated by the arrow in 4, arms 24 and 2% `vvill be similarly rotated. l y As Shoa/'n in Fig. 4, arm 25 is above the arm 2'4. Hence rotation of the knob inthe manner suggested Willxultiinately,cause arm 2 to strike Yagainst lip i2 and bodily raise the bolt from its 'operative 'or locked position shown in Fig. 4 to its inoperative or unlocked position shown in Fig. 2.V The inclined 'face 23 'of lip 22 permits the terminaloi arm '2e to pass by lip 22 and be free thereof to assume the vertical position shown in Fig. 2', namely above the arm 25. y y

When knob 28 is rotated to shift the bolt to an inoperative position, the offset portion 3Q of theY arm 25 of the anhulus 26 above lip 22 abuts leg 3| of spring 32, causing leg 3i to be displaced towards end 33 of the casing although the coiled intermediate portion ofu spring a2 is appropriately anchored to post 34 extending from Wall li of the casing. v

After an 'arm as 2'4 slips by and is free of inclined face 23 of the lip 22, leg 3! of spring 32 automatically retracts and abuts the intermediate portions 36 of the arms 24 and 25, thus holding the latter vertically in respect to the bottom wall of the casing. In such vertical relation of arms 24 and 25, terminal 35 of leg 3i is disposed between the upper arm of the annulus and wall II.

Pivotally mounted on bolt I6 is a latch 36. More particularly upper terminal 31 of latch 36 is pivoted on post 38 extending from the bolt I6. Latch 36 has a tongue 39 adapted to be actuated severally by the arms 24 and 25 of annulus 26. This latch is also provided with reentrant recesses 4l! and 4I defining an overhanging terminal 42.

In an inoperative or open position of bolt I6 (Figs. 2 and 7) the horizontal wall of recess 4I cooperates with stop '43 to prevent downward displacement of the bolt. In a locked or open position of the bolt (Fig. 4) the horizontal wall of recess 40 cooperates with stops 43 to prevent retraction oi the bolt.

Pivoted latch 36 is provided with a slot 44 adapted to loosely deceive post 45 projecting from bolt I 6. This post 45 serves as a fulcrum or pivot for lever 46 having its upper end 41 pivotally connected to the upper end 48 of arm or lever 49 by means of an upset rivet 50. For purposes of specication pivotally interconnected levers 46 and 49 may be considered as a toggle.

It will be noted that latch 36 is provided with a lug 5I having a laterally overhanging portion or hook 52 under which one leg v53 of spring 54 is retained. Lug 5I together with terminal portion 52 project through elongated slot 55 in the pivoted lever 46 of the toggle. The intermediate portion of spring 54 is coiled about the fulcrum post 36 which as previously pointed out pivotally supports latch 36 on the bolt I6. The other leg 56 of spring 54 has its terminal retained within a recessed lug or fork 51 extending from pivoted arm 49 of the toggle.

In the position of the spring 54 illustrated in Fig. 2, legs 53 and 56 of spring 54 are diverged. In such position leg 53 abuts lug 5I of the pivoted latch 36 thus causing the walls of recess 4I to receive stop 43. Hence the bolt is prevented from being downwardly displaced. Since leg 56 of spring 5f-'I abuts fork 51 of the pivoted arm 49 of the toggle, the terminal portion 58 of the toggle is'automatically projected into the gap 55 dened by sockets or guards I2 and I3 of the casing. It follows that if the bolt is in a raised or in an unlocked relation with the similar lugs 66 and 6I of the iixed keeper 62 fastened to frame 63 for the swingable door 65 on which the lock casing is mounted, terminal 42 yof the pivoted latch is held against stop'43 by arm 53 of spring 54 whilethe other arm 56 of the latter sustains lip 56 of the toggle in an exposed position between sockets I2 and I3.

Bolt I6 may be controlled from several indedependent sources.' As is Vwell understood one source is from the inside face of the door since `'knob 26 maybe turned as previously described to retract the bolt to an inoperative position. Such manipulation causes one of the arms offset from annulus 26 to rst strike lip 39, causing latch to pivot and be released or moved away from stop 43. Upon further rotation of the knob, the arm of the annulus releasing the latch also abuts overhanging lip 22, thus bodily shifting the bolt upwardly to its dash and dot line position shown in Fig. 4 or to the full line position shown The bolt may also be controlled outside of theY door. In this connection a key 66 (shown in clash and dot in Fig. 1) is utilized. This key actuates a lock cylinder 61 of conventional design to rotate a stem 68 extending into a slot 69 Vof a bushing 16 appropriately journalled in clo'- sure plate 1I of the casing. To bushing 10 is anchored an arm 12 which serves a purpose similar to either of the arms 24 or 25 of the rotatable annulus 26, that is, if cylinder 61 is rotated, arm 12 is first caused to disengage pivoted latch 36 from the stop 43 by actuating lip 39 after which it strikes lip 22, thus bodily moving a bolt from a closed or locked to an open or unlocked position.

New the bolt may be controlled from a source independent of the knob on the inside face of the door and from a source independent of the look cylinder accessible at the front face of the door. This source may be considered as the keeper 62, fastened to the jamb or frame 63. Especially, however, apertured lug 66 of the keeper serves as abutment for the overhanging portion or terminal 56 of the toggle when the bolt is in an unlocked position.

With the door swinging to a closed position, (Fig. 1) terminal 58 strikes abutment 60, causing the toggle to contract and several operations to take place. The force imparted to arm 49 (see Fig. 3) of the toggle causes its companion lever 46 to tilt or pivot on fulcrum pin or post 45 and since normally one end of slot of lever 46 is abutting against lug 5I of latch 36, movement of lever 46 in a direction away from stop 43, will also cause latch 36, to move away from the stop 43. In other words, if during anunlocked position of the bolt, the door is swung closed, the toggle is automatically operated by abutment 6D to cause the pivoted arms of the toggle to move towards each other and against the resistance of spring 54, and thus release or remove pivoted latch 36 away from stop 43 (Fig. 3).

With latch 36 released from the stop 43 due to the actuation and subsequent contraction of the toggle, the bolt I6 is automatically shifted downwardly to a position whereby its overhanging Cdl studs I4 and I5 interlock with the apertured lugs Y about a headed tube 16' removably surrounding post 13 projecting into the casing from wall2I while the other arm 19 of spring 16 abuts anfupper wall of the casing. Y

Having released latch 36 of the bolt from stop 43 when toggle strikes abutment 60 during closing of the door, arm 15 of spring 16 automatically moves away from spring arm 19, thus shifting the bolt downwardly from the positionillustrated in Fig. 3 to the locked position shown in Fig. 4. In the locked position of the bolt, studs I4 and I5 are interlocked with the keeper, the pivoted arms 46 and 49 of the toggle are again expanded due to the automatic action of the arms of spring 54, the walls of recesses 46, however, of the latch 36 are interlocked with stop 43 and the terminal 58 of the toggle is concealed within the intermediate guard or socket I3.

Although arm 49 of the toggle is pivotally associated with lever or arm 46 thereof, the former is yieldingly retained against stop pin 88 by arm 56 of spring 54 when terminal 58 of the toggle strikes the keeper. Stop pin 80 is fastened to bolt i6 and in effect serves as a stop to prevent upward displacement of arm 49 relative to the bolt. Even though arm 49 yieldingly bears against stop 88 when the toggle is contracted, arm 49 when striking the keeper is slidably displaced in a directicn towards post 38 to tilt its companion arm or lever 46 against the resistance of spring 54 to release the latch from the stop.

When the bolt is interlocked with the keeper, it may be unlocked by either actuating the key controlled cylinder 61 exposed on the outside face of the door or by manipulating knob 28 on the inside iace of the door. In either case, terminal 42 of latch 36 has its recess 40 first removed from stop 43 after which lip 22 is actuated to move the belt upwardly, thereby shifting studs I4 and I5 out of apertured lugs 68 and 6| of the keeper.

Arms 53 of spring 54 in cooperation with hook 52 of the lug 5| projecting through slot 55 of the ,g lever 45 of the toggle comprise means for automatically. moving pivoted latch 36 towards the stop 43 after catch or terminal 42 of the latch has cleared stop 43 and shortly before the bolt has reached the limit of its upward or downward stroke. Thus by the present arrangement, recess 40 interlocks with one corner of stop 43 to prevent accidental upward displacement of the bolt (Fig. 4) in a locked position of the bolt, and recess 45 of terminal 42 cooperates with another corner of stop 43 to prevent accidental downward displacement of the bolt in an unlocked position of the latter.

According to the invention provision has been made to prevent displacement of the bolt when disposed in a locked or unlocked position. To this end, the body of the bolt |6 is provided with the spaced recesses 8| and 82 (Fig. 5). Each of these recesses is adapted to receive annular flange 81 attached to shank 88 of a manipulator or head 89. Shank B8 is reciprocably guided in bearing 98 of the casing and is provided with a retained and a slightly bowed spring 9| adapted to cooperate with the bearing to hold shank 88 in a set position.

As illustrated in Fig. 5, the bolt is in an unlocked position. In such position recess 82 is in alinement with annular liange 81 which may be disposed in recess 82 by pushing head 89 inwardly or towards the casing. With flange 81 disposed in recess 82, the bolt is prevented from displacement even though the toggle is struck against the keeper.

If the bolt of the lock is interlocked with the keeper, recess 8| is in alinement with flange 81 of the manipulator 99. If the latter is pushed inwardly, flange 81 enters recess 8| and consequently the bolt cannot be moved upwardly even though the knob 28 is manipulated from the inside and the cylinder 61 is actuated from the outside. Since the shank 88 is slidably disposed in bearing 99, it may be conveniently controlled by manipulator 89, which may be finger pressed to readily dispose ange 81 in either recess 8| or recess 82 as desired.

Attention is now particularly directed to the dash and dotted line position of the bolt and toggle as shown in Fig. 4. In this dash and dotted line position, the studs of the bolt are removed from the keeper but it is assumed that the door is still closed. In this closed position of the door although the bolt is disconnected from the keeper, it should be noted that terminal 58 is still yieldingly abutting a corner of the abutment or apertured lug 60 of the keeper. Such position of the terminal 58 is maintained even though the bolt is unlocked and the door is closed and when the latter starts to open, terminal 58 is automatically raised by spring arm 56'to an exposed position between the guards l2 and I3 as clearly illustrated in Fig. 2.

By the present invention, it is thus apparent, that an improved jimmy proof lock for a door and jamb is provided wherein a vertically shiftable bolt carries toggle means cooperating with a keeper to permit automatic shifting of the bolt and vertically relative to the casing thereof to permit its studs to interlock with the keeper and wherein conveniently accessible means on the casing may be manually controlled to cooperate with the bolt in its locked position to prevent shifting thereof to an unlocked position from the outside of the door.

The present invention is an improvement directed to the type of jimmy proof locks disclosed in United States Letters Patent 1,195,613 and 1,212,569 issued August 12, 1916 and January 16, 1937 respectively issued to Samuel Segal, the present applicant, and may be embodiedin either or the embodiments disclosed thereby in each of which a vertically displaceable bolt is arranged for interlocking with a xed keeper.

As many changes may be made in the herein described embodiment and many apparently widely different embodiments of the invention may be devised without departing from the spirit thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

I claim:

1. In a lock for cooperating with a keeper including spaced stud receiving members, said lock comprising a casing having a plurality of guards, a bolt movably guided within said casing and having studs disposed in at least a pair of said guards in an unlocked position of said bolt and adapted to be disposed in a removable interlocking relation with said members in a locked relation of said bolt, stop means, the combination with said stud receiving members, said guards, said bolt, and said stop means; a latch pivoted to said bolt, a toggle pivotally supported on said bolt and comprising pivotally connected arms, resilient means for spreading said arms to permit a portion thereof to be exposed between a pair of said spaced guards in an unlocked position of said bolt and to disengageably retain said latch against said stop means, said exposed portion adapted to strike one of said stud receiving members for actuating said toggle to disengage said latch from said stop means, and spring means for shifting said bolt to dispose said studs in 4a removable interlocked relation with said stud receiving members, said resilient means cooperating to shift said latch into engagement with said stop means pursuant to interlocking of said studs and members to preclude retraction of said bolt.

2. In a lock for cooperating with a keeper including exposed stud receiving members, said lock comprising ,a casing having a plurality of guards, a bolt movably guided within said casing and having studs disposed in at least a pair of said guards in an unlocked position of said bolt and adapted to be disposed in a removable interlooking relation with said members in a locked relation of said bolt, stop means, the combination` with said stud receiving members, said guards, said bolt, and said stop means; a latch pivoted to said bolt, a toggle pivotally supported on said bolt and comprising pivotally connected arms, resilient means for spreading said arms to permit a portion thereof to be exposed between a pair of said guards in an unlocked position of said bolt and to disengageably retain said latch against said stop means, said exposed portion adapted to strike one of said stud receiving members for actuating said toggle to disengage said latch from said stop means, and spring means kfor shifting said bolt to dispose said studs in a removable interlocked relation with said stud receiving members, said resilient means cooperating to shift said latch into engagement with said stop means pursuant to interlocking of said studs and members to preclude retraction of said bolt, and rotatablemeans for disengaging said latch from said stop means and for retracting said bolt to dispose said studs in an unlocked relation with said members.

3. In a lock for cooperating with .a keeper including spaced stud receiving members, said lock comprising a casing having a plurality of guards, a bolt movably guided within said casing and having studs disposed in at least a pair of said guards in an unlocked position of said bolt and adapted to be disposed in a removable interlocking relation with said members in a locked relation of said bolt, stop means, the combination with said stud receiving members, said guards, said bolt, and said stop means; a latch pivoted `to said bolt, a toggle pivotally supported on said bolt .and comprising pivotally connected arms, resilient means for spreading said arms to permit a portion thereof to be exposed between a pair of said guards in an unlocked position of said bolt and to retain said latch against said stop means, said exposed portion adapted to strike one of said stud receiving members and be concealed Within said casing and adapted to actuate' said toggle to disengage said latch from said stop means, spring means for shifting said bolt to dispose said studs in a removable interlocked relation with said stud receiving members, said resilient means cooperating to shift said latch into engagement with said stop means pursuant to interlocking of said studs and members to preclude retraction of said bolt, and rotatable means for disengaging said latch from said stop means and for retracting said bolt to dispose said studs in an unlocked relation with said members and for exposing said portion between said pair of guards.

SAMUEL SEGAL. 

